G3000 Door Closer

Specifications

Large square-box body

The heavy-duty square-section body, for the widest and heaviest leaves in the range. Same flat-faced look as the medium square body, with more closing force behind it.

What you can adjust

Two-stage closing speed

The main swing and the final latch are adjusted separately — the factory quotes 180°–15° for the sweep and 15°–0° for the latch. In practice that means you can slow the door down without leaving it too weak to push the latch home.

These are the factory's own adjustment ranges, not tested performance figures under EN 1154.

Build and finish

Finish

Three-layer gloss paint

Operating temperature

Down to -45 °C

The factory's own figure for cold-weather operation. Like the adjustment ranges, it is their claim rather than a result from a test report.

Taken from our own packaging label, which states it as a minimum. For context, EN 1154's durability test runs to 500,000 cycles, so this is double what the standard asks. Ask us for the test basis if the figure matters to your specification.

Finishes

Five stock finishes, and we will match another on a custom order. The swatches below are approximate — ask us for a physical sample before you match one to a frame.

• Silver
• Gold
• Black
• White
• Brown

Inside the body

• Alloy steel gear, with the piston given three extra precision-finishing operations.
• Rack-and-pinion hydraulic action, with the closing speed and the latch controlled by separate valves.
• Imported seals and needle bearings, which is what the factory credits for its leak resistance.
• High-performance spring structure, so the closing force holds up over the life of the unit.

Choosing the right size

Check before you order

• Measure the door leaf width and send it to us — this model's width limit needs factory confirmation.
• Check the door weight: this model is rated up to 85 kg. If you cannot weigh it, tell us the leaf size, material and thickness and we will estimate it.
• Exterior doors and doors in draughty corridors face wind pressure the specification does not account for. If the door is exposed, say so — it can push the choice up a power size.

Not sure which model fits? The selection guide walks through measuring a door and reading these numbers, or just describe your door in an inquiry and we will recommend one.